PHP-Nuke Patched has been moved up to version 2.4, the "make sure you have all the latest fixes" release, with 2.4 PHP-Nuke 7.3 gets its own patch, it's the smallest one mainly because 7.3 already has PHP-NUke Patched incorporated so the patch only includes fixes and security code that was added after 7.3 was released or about the same time.

This will most likely be the last patch for 6.0 and some of the other 6.x versions unless something with enough merit requires updating them.

Download locations are the usual, for your convenience they can all be found in the front page of the following websites:
NukeResources - NukeFixes - NukeHaven - NukeSecurity and RavenphpScripts